dotAll 模式) RegExp named capture groups (正则表达式命名捕获组) Rest/Spread Properties (Rest/Spread 属性) RegExp Lookbehind...Assertions (正则表达式反向(lookbehind)断言) RegExp Unicode Property Escapes (正则表达式 Unicode 转义) Promise.p
RegExp named capture groups(正则表达式命名捕获组) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 const regex = /(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})/; const match = regex.exec('2023-06-25'); console.log(match.groups.year); // 2023 console.log(match.groups.mont...
let regex = /t(e)(st(\d?))/g let string = 'test1test2test3' let matches = [] let match while (match = regex.exec(string)) { matches.push(match) } console.log(matches) // [ // ["test1", "e", "st1", "1", index: 0, input: "test1test2test3", groups: undefined], //...
log(match.groups.month) // → 03 console.log(match.groups.day) // → 04 这也是为什么在使用 capture groups 的时候输出里老是有一个 groups === undefined解构小技巧 值得注意的是, named group 其实也是 capture group, 只不过是特殊的 capture group, 所以下面的代码依然可以运行 const re = /(?<...
RegExp named capture groups RegExp Lookbehind Assertions RegExp Unicode Property Escapes 我特别挖掘了“RegEx命名捕获组”功能,因为它提高了可读性: 有关这些功能的更多信息可以在Mathias Bynens找到 - 这些建议背后的驱动力之一 - 他的博客:ECMAScript正则表达式越来越好!
Similar to numbered capture groups, named capture groups can be inserted into the replacement value of thereplace()method. To do that, you will need to use the$<name>construct. For example: const str = 'War & Peace'; console.log(str.replace(/(War) & (Peace)/, '$2 & $1')); ...
// Change thisconstname=XRegExp.exec(str,regexWithNamedCapture).name;// To thisconstname=XRegExp.exec(str,regexWithNamedCapture).groups.name; Seethe README on GitHub ⇨for more examples of using named capture withXRegExp.execandXRegExp.replace. ...
相比以前在while语句里循环正则匹配,这个 API 真的是相当的便利。And more,还顺带提到了Named Capture Groups,这个在之前的精读《正则 ES2018》中也有提到,具体可以点过去阅读,也可以配合matchAll一起使用。 Numeric literals 大数字面量的支持,比如: 1234567890123456789*123;// -> 151851850485185200000 ...
✔ Promise.prototype.finally ✔ RegExp named capture groups ✔ Rest/spread operators for object literals (...identifier) ✔ SharedArrayBufferECMAScript 2019✔ Array.prototype.flat, Array.prototype.flatMap ✔ String.prototype.trimStart, String.prototype.trimEnd ✔ Object.fromEntries ✔ ...
RegEx simplified with named capture groups in JavaScript August 24, 2021— Regular expressions (RegEx) are great little strings that help in solving some of the complex problems that are rather hard if we don’t use the RegExes. Read More console.trace — A better alternative to console.lo...